Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:16:28

Orbital Elements for YSC148AB

WDS:	YSC148AB	WDS ID/Discoverer
P:	11.150	Orbital period (years)
a:	0.168	Semi-major axis (arcseconds)
i:	43.0	Inclination (degrees)
Ω:	355.5	Longitude of ascending node (degrees)
T:	2005.960	Epoch of periastron passage (year)
e:	0.326	Eccentricity
ω:	138.5	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for YSC148AB

Position:	054629.79+743636.4	Epoch-2000 right ascension and declination
WDS-ID:	05465+7437	WDS designation
Discoverer Code:	YSC148AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	37393	HD catalog number
Hipparcos number:	27246	Hipparcos catalog number
V1:	7.5	Magnitude of the primary
V2:	10.3	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2013	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for YSC148AB

WDS 6th Orbit including measures of YSC148AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of YSC148AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.196    357.1
-------------------------
2020.0     0.137    260.2
2021.0     0.159    289.4
2022.0     0.184    310.9
2023.0     0.204    327.5
2024.0     0.209    342.1
2025.0     0.196    357.1
2026.0     0.161     16.7
2027.0     0.108     52.8
2028.0     0.093    125.1
2029.0     0.123    179.5

Disclaimer

Acknowledgements

The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.